Ignition-timer.



C. SINTZ.

IGNITION TIMER. APPLIOATION FILED mm. 18. 1907.

Patented Feb. 16, 1909.

m i w e m i Wm a 0w mos.

CLAUDE SI-NTZ, OF GRAN-D BAP-IDS,

IGNITION-amuse.

Specification of Letters Pateizti ,Patented Feb. s, 1909.

Application filed March 18, 1907. Serial lie. 363,109,

To all whom it may concern:

Be it known that I, CLAUDE SINTZ, a citizen of the United States ofAmerica, residing at Grand Rapids, in the county of Kent and State ofMichigan, have invented certain new and useful Improvements inIgnition-Timers; and I do hereby declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the artto which it appertains to make and use thesame.

My invention relates to ignition timers for internal combustion engines,and its object is to provide an improved adjustable ignit-ion timer forsuch engines, to provide a simple-and durable device, to. provide adevice so constructed that the parts are not liable to become loosenedor displaced by use, and to provide the same with various new and usefulfeatures hereinafter more fully described and particularly pointed outin the claims. Heretofore in such devices there hasbeen great difficultyin maintaining the p arts in proper relation and adjustment due to thevibrations and rapid movement of the same.

My invention consists of the combination and arrangement whereby thesedifficulties are obviated, and a simple and reliable structure produced,which iseasy to manu factnre, and readily takenapart' as assembled, aswill more fully appear by reference to the accompanying drawings, inwhich:

Figure 1. is :1 front elevation of a device embodying my invention withparts broken away to show the construction; Fig. 2. is a verticalsection of the same on the line 2-2 of Fig. 1.; Fig. 3. a detail of therotating head; and, Fig. 4;. a detail of the contact member in thehead.Like numbers refer to like parts in all of the figures.

1 represents a cup shaped case of any suitable dimensions and preferablyprovided with a transparent disk 2 to close the front of the same, saiddisk being secured in place between a ring 3 screwed into thefront ofthe case and the insulating ring 17.

rotative head 5 located within the case. This I hub provided with asocket 7 a set screw 8 and a key seat 9,'whereby it maybe attached to arotative shaft in the usual way. The head 5 is cylindrical in shape andis recessed in the edge as at .l 0, transversely to its axis. Extendingfrom this recess and radially across the axis .is an opening let withinwhich is slidably inserted the tubular stem 12 of a yoke 11, said yokebeing located and slidablewithin the recess 10 and also having itsopposite fiat sides slidably engag ing the walls of the recess andretained thereby in planes at right angles to the axis of the head. Inthisyoke is mounted a roller 15 journaled on a transverse pin 16 in theyoke, which pin abuts against the walls of the recess 10 and is retainedin'pla ce thereby. In the tubular stem 12 is a spring ,13 which movesthe yoke radially and thus yieldingly forces the roller 15 in contactwith the inner surface of the insulating ring 17- in the periphery ofthe case. Extending radially through this insulating ring, and atregular intervals are bolts 18 of conduction.

material forming the insulated terminals of .the igniter circuits,theheads of which bolts are embedded in the ring with their surfaceexposed and engaged in succession by the roller 15 as the head isrotated by the-shaft to which it is attached. These'terminals are innumber to correspond to the cylinders of the engine with which thedeviceis to be connected, two terminals being shown in this case.Surrounding each bolt are insulating washers 17 and on each bolt are jamnuts 19, the outer nut being provided with recesses in which areinserted cotter pins 20 extending through transverse openings inthebolts 18 to secure. the nuts from being loosened.

By the described construction, I am able to make a simple and compactstructure of few parts with large bearings and easily constructed. Themore delicate parts such as the spring and yoke are inc'losed within thehead and impossible ofdisplacement or disorganizationby the vibrationsof the device when running. It will also be noted that the bolts whichform the terminals are 21 is an arm to hold the case from rotating andto adjust the case to determine the time so arranged that the hammeringof the roller 15 cannot displace or loosen the same; and also that thedevice is readily taken apart or re-assembled as occasion may reuire.

What I claim is:

1. An ignition timer comprising a rotative cylindrical head having arecess in one side,'

- roller.

'head rotative inthe case and having a recess in one side,

2. An ignition timer comprising a case, a

said recess having parallel walls Spaced apart and in para'llelplanes atright angles'to the axis of the head, and also hav' ing anopeningextending from the bottomof the'recess radially across-the axisof the head-, a' yoke in the recessand Walls thereof, astem on the yokeand movable -in said opening, a roller journaled in the yoke, a springto move the yoke outward, a ring of insiilating material surrounding thehead and traversed by the roller, and electric terminals inserted in thering and I contacted by the roller.

3. An ignition timer comprising a cylindrical head, a case inclosing thehead and having a bearing in its axis, an integral tubular hub-onthe'head and ournaled'm the bearing, said head also having a recess withparallel walls and a radial opening communicating With the recess, ayoke in the recess and guided by the walls thereof, a tubular stem onthe yoke, a spring in the.

stem, a roller journaled in the yoke, a ring of insulating material inthe case and surrounding the head, and electric terminals radiallyinserted in the ring'andcase and successively contacted by theroller.

4. An ignition timer comprising a cylindrical head, having a recess inone side, said recess having walls spaced apart and in parallel planesat right angles to the axis of the head and also having a radial openingan lntegralcommunicating ith the recess, tubular hub on the head andprovided with means for securing a shaft therein, a yoke in the recessand guided by the walls thereof, a pin in the yoke and retained thereinby the said walls, a roller journaled on the pin, atubular stem on theyoke and movable in the opening in the head, a spring in the stem, aring of insulating material surrounding the head and traversed by theroller, an adjustable case inclosing the head and ring, and a bearing inthe case in which the hub is j ournaled.

guided by the edges flush With the wall the yoke.

6. In an ignition timer, a cylindrical and rotative head ha'vin a.recess in one-side, said recess having para l'el; wa'lls spaced apart,and also having a radial opening communieating with the recess, a yokein the recess and having parallel sides slidably engaging the walls ofthe recess, a pin in the yoke and retained therein by the walls of therecess, a-roller journaled on the pin, a' iLlblllZlF'SlGli'l to the yokeand movable in the opening, and aspring in the said stem to move theyoke radially in the recess.

7. A sparker of the type set forth comprising an insulating block formedwith an an nular opening, contact plates countersunk into said block andhaving their exposed of said opening, posts carried by said plate andprojecting through said block, binding nuts on the edge of said post, arevoluble shaft projected'een trally through said opening, a disk faston said shaft and formed with a straight sided opening extendingradially to the edge thereof, a straight sided plug conformably fittingin said disk opening for radially sliding movement and formed withanaxial bore extending radially to the edge't'hereof adjacent the loweredge of said disk opening, an

expansive coil spring disposed within said-- bore and bearing againstthe underneath surface of the top of said plug and against the lowersurface of said disk opening, said plug being formed in its uppersurface with a transverse concave recess, a 'pin having its endsjournaled in the side walls of said recess, and a roller carried bysaidpm and havinga portion thereof projecting beyond the periphery ofsaid disk, the periphery of said disk. beingspaced away from the annularedge of said first named openin x- In testimony whereof I in presence oftwo witnesses.

CLAUDE SINTZ. Witnesses: V

PALMER A. Jones,

GEORGIANA CnAeE.

aifix my signature

